Overheating

I am assuming you are topped off with coolant.

Maybe your thermostat is intermittently sticking?

Got two links for you out of "repair guides" (top right of our pages!)

There is a lot more information in there (look under cooling).

https://www.2carpros.com/articles/how-an-engine-thermostat-works

And here is aother:

https://www.2carpros.com/articles/replace-thermostat

Keep us posted,

The Medic

I know you probably feel confident with the thermostat, a miracle, a breakthrough.

I am a Jeep guy and eight or nine or so years ago I was sort of stranded in the recliner with a really bad broken foot learning how to use a computer via phone with my sister.

I was surfing (dog paddling) around on the net, in particular Jeep places (sites). I recall seeing that they can fail (I do not use them myself Ia m one of those "too good to be true" people).

I just did a Google search to see what all was being said about them.

This was the last search I made, "fail safe thermostat failure", plenty of reading.

So anyway if it did fail "open" (as advertised) I would guess it is sacrificial and now maintaining operating temperature and heat is not faring well.

You say it overheated again, now everything is just fine.

I would rule out a stopped up radiator.

Fan clutch?

https://www.2carpros.com/articles/fan-clutch-symptoms

I kind of want to stay in the middle, but if it happens again, I would maybe look into that thermostat as a possibility.

The Medic